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Geolocation
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Author - title
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Year
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| details | Pannonian | Yugoslavia | Budnar-Tregubov,A. Micropaleobotanical research of the coals from Locevje and Kanizarnica in Slovenia. | 1961 | |
| details | Early Pliocene | Yugoslavia | Pantic,N.K. et al. The Lower Pliocene swamp vegetation of the Kolubara Bay and the genesis of the Coal Seam. | 1967 |